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53251090805 = 511968201651
BaseRepresentation
bin110001100110000000…
…110010100101110101
312002110011022200210102
4301212000302211311
51333024234401210
640244015403445
73563416542413
oct614600624565
9162404280712
1053251090805
1120646941760
12a3a1823585
1350384892b3
1428124182b3
1515b9ed5ea5
hexc66032975

53251090805 has 8 divisors (see below), whose sum is σ = 69710518944. Its totient is φ = 38728066000.

The previous prime is 53251090759. The next prime is 53251090817. The reversal of 53251090805 is 50809015235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53251090805 - 210 = 53251089781 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484100771 + ... + 484100880.

It is an arithmetic number, because the mean of its divisors is an integer number (8713814868).

Almost surely, 253251090805 is an apocalyptic number.

53251090805 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53251090805 is a deficient number, since it is larger than the sum of its proper divisors (16459428139).

53251090805 is a wasteful number, since it uses less digits than its factorization.

53251090805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968201667.

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 53251090805 in words is "fifty-three billion, two hundred fifty-one million, ninety thousand, eight hundred five".

Divisors: 1 5 11 55 968201651 4841008255 10650218161 53251090805